ul.timeline {
    list-style-type: none;
    background: url("../res/img/version_line.png") repeat-y scroll 120px 0 transparent;
    margin: 30px 0;
    padding: 0;
}

ul.timeline li {
    position: relative;
    margin-bottom: 20px;
}
ul.timeline li .time {
    position: absolute;
    width: 90px;
    text-align: right;
    left: 0;
    top: 10px;
    color: #999;
}
ul.timeline li .version {
    position: absolute;
    width: 290px;
    text-align: right;
    left: -200px;
    top: 30px;
    font-size: 40px;
    line-height: 50px;
    color: #3594cb;
    overflow: hidden;
}
ul.timeline li .number {
    position: absolute;
    background: url("../res/img/version_dot.png") no-repeat scroll 0 0 transparent;
    width: 56px;
    height: 56px;
    left: 97px;
    line-height: 56px;
    text-align: center;
    color: #fff;
    font-size: 18px;
}
ul.timeline li.alt .number {
    background-image: url("../res/img/version_dot_alt.png");
}
ul.timeline li .content {
    margin-left: 180px;
    
}
ul.timeline li .content pre {
    background-color: #3594cb;
    padding: 20px;
    color: #fff;
    font-size: 13px;
    line-height: 20px;
}
ul.timeline li.alt .content pre {
    background-color: #43B1F1;
}